Did you really think its better way to make a better laps?
Using a force mode makes a sence only when u're a setup builder
and you see forces what is wrong or when car is too low or
suspension is too hard or too soft.
In real lfs racing on high level i dont know anyone who will use it for racing
because is a shame when you're not feeling you own wheels
when you hit the kerb or sth.
and force mode not removes your bumpers so when you hit someone
its your fault. That how to gain some speed depends from set, from your knowledge about track, knowledge about a car and driver's mind.